There are a bunch of things that need to be answered by you that may not have been talked about much yet. Is there a market out there for you and how cut throat is it,Here in the Detroit surburbs its very cut throat eveyone is selling green wood for cheap anywhere from $275 for all oak 3 years cured to $150 green willow a cord . The market is all over an unless you can caputre some for sure! I would not hop into a 12K processor payment on that is what 750 a month! plus help and fuel and mainteance and probably 1 good saw every other year ... I would think very hard about it, firewood is a money pit your tring to make money at it, heating your home great money saver, In my opion firewood is a good way to comeout even if your lucky.
However it does work for some, basiclly its a full time job on top of your full time job. I tried it and did ok, I was small time started with a huskee TSC 28 ton, dads 044, and a crapsman. Bought a stuff along the way timber jack, chains, an 084(bought with my own cash for firewood use), tarps, gas, oil, lube, couple of oil changes on equipment, being real honest about $1500 after dipping into the jar for odds and ends, friday nite going out etc for about 25-30 cords or so.
Then nieghbor next to my step moms decided to breakin to the house stole a bunch of stuff, we proscute, they are bat **** crazy and start complaining about where I stack the wood (next to the driveway along property line) get the law out there which still came out in my favor. So I let it go for 2 years to let the dust settle down and I am going to get back into it this year slowly to see where Im at.
If it was me for that kinda cash I vote for All Wood Ive talked to Bobby multi times seems to be a real good guy maybe he can build to suit for you. Just looked at there site and you could probly get into a "bloodwood" machine thats got a 6x3 cylinder, 40 hp kolher engine, 57 gallon/min pump and a 6 second cycle time. If that aint enough just burn it log length!
My piont with all of this is to really consider all points of view not only expensises, cost of not always being available cause your working either your regular job or firewood etc. Cost of labor,oil,gas,maintance,food,etc. Things add up quick, and if momma aint happy no ones gonna be happy.